GTM Gantry Type Turning and Milling Center
Applications of GTM Gantry Type Turning and Milling Center:
Compared with GTC gantry type turning center, GTM gantry type turning and milling center can not only turn the curved surface such as outer circle, inner hole and end surface in once setup, but also can be used for boring, drilling and tapping inner hole, outer circle, surface, slant surface, curved surface and groove etc. Besides, function of Y-axis was added.
GTC/GTM-f/GTM series turning and milling center is ideally suited for machining large-size and complicated discal parts in industries such as aerospace, shipping, wind power, hydroelectricity, military, mine, train, auto etc.

Structure Features of GTM Gantry Type Turning and Milling Center:
The main drive is controlled by large power motor with wide speed range and double spindles. For the motor, the master-slave control is used during turning, and the electronic pre-loaded gap elimination control is used at milling status.
Hydrostatic guideway, with large load capacity, anti-abration, high running accuracy and long life span, is adopted to support the worktable and workpiece.
The hydrostatic guideway is used on X and Y axes, resulting in increased guide stiffness, reduced friction factor and improved positioning accuracy and repeatability.
Multi-type of attachment heads is equipped, which can realize automatic exchanging. Straight boring & milling head, optional straight boring and milling head, right boring and milling head, multi stations turret, universal boring and milling head are optional to satisfy the actual needs of our customers.
The internal ram technology-indexing motor integrated in the ram.
The synchronous driving control technology is implemented to control the beam moving up and down, with features of high speed, smooth machining and high positioning accuracy.

Technical Specifications of GTM Gantry Type Turning and Milling Center:

Item		Units						GTM-f Series vertical turning & milling center					GTM Series Gantry moving vertical turning & milling center
			GTC 160 140 /160	GTC 200 140 /160	GTC 250 140 /160	GTC 320 140 /160	GTC 430 140 /160	GTM 160 140 /160f	GTM 200 140 /160f	GTM 250 140 /160f	GTM 320 140 /160f	GTM 430 140 /160f	GTM 160 140 /160	GTM 200 140 /160	GTM 250 140 /160	GTM 320 140 /160	GTM 430 140 /160
Worktable diameter		mm	1250 / 1400	1600 / 1800	2000 / 2250	2500 / 2800	3200 / 3500	1250 / 1400	1600 / 1800	2000 / 2250	2500 / 2800	3200 / 3500	1250 / 1400	1600 / 1800	2000 / 2250	2500 / 2800	3200 / 3500
Max. swing diameter		mm	1600	2000	2500	3200	4300	1600	2000	2500	3200	4300	1600	2000	2500	3200	4300
Max. turning diameter		mm	1600	2000	2500	3200	4300	1600	2000	2500	3200	4300	1600	2000	2500	3200	4300
Distance between double columns		mm	1440	1940	2340	3040	4540	1440	1840	2340	3040	4540	1440	1840	2340	3040	4540
Workpiece height		mm	1600	2000	2000	2500	3000	1600	2000	2000	2500	3000	1600	2000	2000	2500	3000
Max. cutting force		kN	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50
Max. workpiece weight		ton	10	15	20	25	40	10	15	20	25	40	10	15	20	25	40
Motor power		kW/ AC	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)	110 (=55 ×2)
Work- table	Max. turning speed	rpm	0- 335	0- 265	0- 200	0- 180	0- 120	0- 335	0- 265	0- 200	0- 180	0- 120	0- 335	0- 265	0- 200	0- 180	0- 120
	Milling speed (C-axis)	rpm	-	-	-	-	-	0- 5	0- 5	0- 5	0- 5	0- 5	0- 5	0- 5	0- 5	0- 5	0- 5
	Max. worktable torque	kNm	37.5	48	58	70	50	37.5	48	58	70	50	37.5	48	58	70	50
	Jaw quantity		4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Ram	Section size	mm	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280	240 × 280
	Min. turning diameter	mm	375	375	375	375	375	375	375	375	375	375	375	375	375	375	375
Travel	Saddle travel (X-axis)		-0.5 251	-0.5 909	-0.6 078	-0.6 786	-0.7 042	-1100/ +2095	-0.5 909	-0.5 882	-0.6 786	-0.7 143	-0.5 251	-0.5 909	-0.6 078	-0.6 786	-0.7 042
	Ram travel (Z-axis)	mm	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600	1400 / 1600
	Gantry travel (Y-axis)	mm	-	-	-	-	-	-	-	-	-	-	± 800	± 1000	± 1250	± 1600	± 2150
	Beam travel (W-axis)	mm	1000	1400	1400	1700	1800	1000	1400	1400	1700	1800	1000	1400	1400	1700	1800
Feed speed	Feed speed (X/Z -axis)	mm/ min	0- 160 00	0- 160 00	0- 160 00	0- 160 00	0- 160 00	0-160 00	0- 160 00	0- 160 00	0- 160 00	0- 160 00	0- 160 00	0- 160 00	0- 160 00	0- 160 00	0- 160 00
	Feed speed (Y- axis)	mm/ min	-	-	-	-	-	-	-	-	-	-	0- 8000	0- 8000	0- 8000	0- 8000	0- 8000
Rapid traverse	Rapid speed (X/Z-axis)	mm/ min	160 00	160 00	160 00	160 00	160 00	160 00	160 00	160 00	160 00	160 00	160 00	160 00	160 00	160 00	160 00
	Gantry rapid speed (Y-axis)	mm/ min	-	-	-	-	-	-	-	-	-	-	8000	8000	8000	8000	8000
	Beam rapid speed (W-axis)	mm/ min	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000	4000
B & M axis	Max. speed	rpm	-	-	-	-	-	3150	3150	3150	3150	3150	3150	3150	3150	3150	3150
	Max. torque	Nm	-	-	-	-	-	2400	2400	2400	2400	2400	2400	2400	2400	2400	2400
	Power (100%)	kW	-	-	-	-	-	52	52	52	52	52	52	52	52	52	52
	Shank ISO		-	-	-	-	-	50	50	50	50	50	50	50	50	50	50
Tool maga- zine	Attach- ment head magazine	Sta- tion	12	12	12	12	12	6	6	6	6	6	6	6	6	6	6
	Milling tool magazine	Sta- tion	-	-	-	-	-	28(horizontal 6 stations, vertical 22 stations)

SMTCL is a professional turning and milling center manufacturer. Our scientists and engineers are dedicated to helping customers increase profitability.

GTM Gantry Type Turning and Milling Center